Energy can be changed from one form to another. Changes in the form of energy are called energy conversions. In an automobile
engine, fuel is burned to convert _energy into heat energy. The energy is then changed into energy.
Identify the correct order of energy conversion in an automobile engine.
A)
heat - chemical - mechanical
chemical
mechanical
heat
mechanical
heat - chemical
D)
chemical
heat-mechanical
Submit
Law of Conservation of Energy

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

How does photosynthesis show the conservation of mass and energy?

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain.